HiSpec HSSA-PE Smoke Alarm

Hispec HSSA/PE Optical / Photoelectric Smoke Alarm - Mains with9V Battery Backup The Hispec Photoelectric Mains 240V Smoke Alarm Interconnectable with 9v Battery Back-Up is supplied with a unique First Fix base which enables the installer to complete the wiring before the ...Hispec HSSA/PE Optical / Photoelectric Smoke Alarm - Mains with9V Battery Backup The Hispec Photoelectric Mains 240V Smoke Alarm Interconnectable with 9v Battery Back-Up is supplied with a unique First Fix base which enables the installer to complete the wiring before the plasterers and painters coat the surface without interfering with the detector's circuitry. The Photoelectric Mains 240V Smoke Alarm has a interconnectable feature allows up to 20 Hispec heat alarms and / or smoke alarms to be connected together over a 150 metre distance, using the single yellow wire, and thus allowing all of the alarms on the circuit to sound when any one of them is activated.